Packing device for automatic sack-weighing machines



7 Sept. 30, 1930. J. w. REUTHER 1,777,224

PACKING DEVICE FOR AUTOMATIC SACK WEIGHING MACHINES Filed April 25. 1929Patented Sept. 30, 1930 NITED STATES JOHANN WILHELM REUTHER, FHENNEF-ON-THiE-SIEG,GERMANY PACKING DEVICE FOR AUTOMATIC SAGK- WE IGEINGMACHINES Application filed April 25, 1929, Serial No. 358,054; and inGermany anuary 29, 1929.

The present invention refers to a packing device for automatic sackweighing machines of the type described in the U. S. Patent No.1,730,295 (application Serial Numher 266,778) comprising means orpacking members arranged to coact with opposite sides of a sack andmeans for actuating said members to alternately effect simultaneousengagement with opposite sides of the 1 sack at different heights. Thepacking members hereby effect a bending of the sack to one side. Indouble acting devices of this kind, in which two double-armedoscillating levers having each two pressing heads are provided, the sackis bent alternately in opposite directions.

With this packing device the upper and lower packing members engage thesack in such manner that they exert pressures at 0pposite inclinations,that is to say the upper packing member acts in a downwardly inclineddirection and the lower packing member in an upwardly inclined directionagainst the sack. Thus the directions of pressure of the upper packingmember and the lower packing member cross each other.

In the preferred construction of the double acting device naturally thetwo lower packing members act at an inclined upward direction.

It has been established that the good packing results secured by thesaid packing device are still improved, if the lower packing member (orthe lower packing members) also strikes against the sack at a downwardlyinclined direction. In such case the effect of the upper packing memberwill be continued by the lower packing member with respect to thedirections of pressure; contents of the sack displaced by the upperpacking member will not be pushed back again by the lower packing memberbut will be worked upon in the same direction.

The action even of the lower packing memher in an inclined directionagainst the sack can be secured with the single acting packing device inthis way, that the lower packing member is also arranged upright and isconnected by suitable means with the upper packing member on the otherside of the sacks In double acting. packing devices every lower uprightpacking member is mounted on: a special axis and connectedcorrespondingly with the'upper packing member on the same side.'

By the alternate action of the upper and lower packing members on thesack packing is effected by both members in the. same inclinedtransversal direction.

Owing to the improved action the time of packing is shortened, and thusa very important increase of efiiciency of the weighing scale results.The equal directed packing movements of the packing members moreoverhave the advantage that less dust escapes and therefore annoyance andloss of material are avoided. Even a saving of sacks results thereby.

In the drawing a construction of the invention is shown by way ofexample.

On the axes a and b journaled horizontally on opposite sides of the sackat about half of its height the one arm packing members 0 and 0?respectively are mounted standing upright. The levers e and f, alsofastened to the axes a, b, are so connected by links is, Z with cranks eon the driving shaft g, that on the latter rotating the packing members0, d strike alternately opposite portions of the sack at the sameheight. At the bottom of the sack on both sides the axes a and b arehorizontally journaled on which the packing members 0 and d are mounted.Moreover levers 0 and p are attached to the axes a and b and levers rand s to the axes a and b. The lever 0 and the lever 1 and so the leverp and the lever s are linked to the pack- 7 ing members 0, d by the rods2? and u respectively, so that on the shaft 9 rotating alternately thepacking members (Z and 0 and on g bars 0', (1' may be carried out in anyconvenient manner. V

I claim:

1. In a sack packing mechanism spaced packing members arranged to ccactwith opposite sides of the sack to be packed, both packing members beingconstructed and actuated as to effect pressing engagement simultaneously at different heights and at inclined 10 downward andtransverse directions.

2. A sack packing mechanism such :as claimed in claim 1 characterized inthis that both packing members, which are oscillatory journaled onopposite. sides 10f vthe sack, are a 15 arranged upright and that thelower packingmember is'connected by linkage with the uper-packing memberon the 0p osite side;

a the sack, in such manner that 0th packing members strike the sacksimultaneously 20* in downward direction.

In testimony whereof I have signed my name to this specification. 1

J OHANN WILHELM REUTHER.

